Maybe allow array of arrays as input for cartesianProduct

[jestersimpps]

I currently have to apply some hackery to be able to input an array of arrays:

Combinatorics.cartesianProduct().apply(this, [[1,2,3],[4,5,6],[7,8,9]])

It would be nice to also allow for this kind of input:

Combinatorics.cartesianProduct([[1,2,3],[4,5,6],[7,8,9]])

[papb]

Your usage of apply is incorrect, you probably mean this:

Combinatorics.cartesianProduct.apply(null, [[1,2,3],[4,5,6],[7,8,9]])

If you're using ES6, you can just use the spread operator, which converts an array in an argument list directly, without the need for .apply():

Combinatorics.cartesianProduct(...[[1,2,3],[4,5,6],[7,8,9]])

[jestersimpps]

thx for the tip about the spread op. Didn't know you could omit the apply!